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Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
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  <head>
    <meta charset="utf-8" />
    <title>HTML Compliant Output &mdash; CKEditor Sample</title>
    <script src="../../../ckeditor.js"></script>
    <script src="../../../samples/old/sample.js"></script>
    <link href="../../../samples/old/sample.css" rel="stylesheet" />
    <meta name="ckeditor-sample-required-plugins" content="sourcearea" />
    <meta name="ckeditor-sample-name" content="Output HTML" />
    <meta name="ckeditor-sample-group" content="Advanced Samples" />
    <meta
      name="ckeditor-sample-description"
      content="Configuring CKEditor to produce legacy HTML 4 code."
    />
  </head>
  <body>
    <h1 class="samples">
      <a href="../../../samples/old/index.html">CKEditor Samples</a> &raquo;
      Producing HTML Compliant Output
    </h1>
    <div class="warning deprecated">
      This sample is not maintained anymore. Check out the
      <a href="https://ckeditor.com/docs/ckeditor4/latest/examples/index.html"
        >brand new samples in CKEditor Examples</a
      >.
    </div>
    <div class="description">
      <p>
        This sample shows how to configure CKEditor to output valid
        <a class="samples" href="http://www.w3.org/TR/html401/">HTML 4.01</a>
        code. Traditional HTML elements like <code>&lt;b&gt;</code>,
        <code>&lt;i&gt;</code>, and <code>&lt;font&gt;</code> are used in place
        of <code>&lt;strong&gt;</code>, <code>&lt;em&gt;</code>, and CSS styles.
      </p>
      <p>
        To add a CKEditor instance outputting legacy HTML 4.01 code, load the
        editor using a standard JavaScript call, and define CKEditor features to
        use the HTML compliant elements and attributes.
      </p>
      <p>
        A snippet of the configuration code can be seen below; check the source
        of this page for full definition:
      </p>
      <pre class="samples">
CKEDITOR.replace( '<em>textarea_id</em>', {
	coreStyles_bold: { element: 'b' },
	coreStyles_italic: { element: 'i' },

	fontSize_style: {
		element: 'font',
		attributes: { 'size': '#(size)' }
	}

	...
});</pre
      >
    </div>
    <form action="../../../samples/sample_posteddata.php" method="post">
      <p>
        <label for="editor1">
          Editor 1:
        </label>
        <textarea cols="80" id="editor1" name="editor1" rows="10">
&lt;p&gt;This is some &lt;b&gt;sample text&lt;/b&gt;. You are using &lt;a href="https://ckeditor.com/"&gt;CKEditor&lt;/a&gt;.&lt;/p&gt;</textarea
        >
        <script>
          CKEDITOR.replace('editor1', {
            /*
             * Ensure that htmlwriter plugin, which is required for this sample, is loaded.
             */
            extraPlugins: 'htmlwriter',

            /*
             * Style sheet for the contents
             */
            contentsCss: 'body {color:#000; background-color#:FFF;}',

            /*
             * Simple HTML5 doctype
             */
            docType: '<!DOCTYPE HTML>',

            /*
             * Allowed content rules which beside limiting allowed HTML
             * will also take care of transforming styles to attributes
             * (currently only for img - see transformation rules defined below).
             *
             * Read more: https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html
             */
            allowedContent:
              'h1 h2 h3 p pre[align]; ' +
              'blockquote code kbd samp var del ins cite q b i u strike ul ol li hr table tbody tr td th caption; ' +
              'img[!src,alt,align,width,height]; font[!face]; font[!family]; font[!color]; font[!size]; font{!background-color}; a[!href]; a[!name]',

            /*
             * Core styles.
             */
            coreStyles_bold: { element: 'b' },
            coreStyles_italic: { element: 'i' },
            coreStyles_underline: { element: 'u' },
            coreStyles_strike: { element: 'strike' },

            /*
             * Font face.
             */

            // Define the way font elements will be applied to the document.
            // The "font" element will be used.
            font_style: {
              element: 'font',
              attributes: { 'face': '#(family)' },
            },

            /*
             * Font sizes.
             */
            fontSize_sizes:
              'xx-small/1;x-small/2;small/3;medium/4;large/5;x-large/6;xx-large/7',
            fontSize_style: {
              element: 'font',
              attributes: { 'size': '#(size)' },
            },

            /*
             * Font colors.
             */

            colorButton_foreStyle: {
              element: 'font',
              attributes: { 'color': '#(color)' },
            },

            colorButton_backStyle: {
              element: 'font',
              styles: { 'background-color': '#(color)' },
            },

            /*
             * Styles combo.
             */
            stylesSet: [
              { name: 'Computer Code', element: 'code' },
              { name: 'Keyboard Phrase', element: 'kbd' },
              { name: 'Sample Text', element: 'samp' },
              { name: 'Variable', element: 'var' },
              { name: 'Deleted Text', element: 'del' },
              { name: 'Inserted Text', element: 'ins' },
              { name: 'Cited Work', element: 'cite' },
              { name: 'Inline Quotation', element: 'q' },
            ],

            on: {
              pluginsLoaded: configureTransformations,
              loaded: configureHtmlWriter,
            },
          });

          /*
           * Add missing content transformations.
           */
          function configureTransformations(evt) {
            var editor = evt.editor;

            editor.dataProcessor.htmlFilter.addRules({
              attributes: {
                style: function (value, element) {
                  // Return #RGB for background and border colors
                  return CKEDITOR.tools.convertRgbToHex(value);
                },
              },
            });

            // Default automatic content transformations do not yet take care of
            // align attributes on blocks, so we need to add our own transformation rules.
            function alignToAttribute(element) {
              if (element.styles['text-align']) {
                element.attributes.align = element.styles['text-align'];
                delete element.styles['text-align'];
              }
            }
            editor.filter.addTransformations([
              [{ element: 'p', right: alignToAttribute }],
              [{ element: 'h1', right: alignToAttribute }],
              [{ element: 'h2', right: alignToAttribute }],
              [{ element: 'h3', right: alignToAttribute }],
              [{ element: 'pre', right: alignToAttribute }],
            ]);
          }

          /*
           * Adjust the behavior of htmlWriter to make it output HTML like FCKeditor.
           */
          function configureHtmlWriter(evt) {
            var editor = evt.editor,
              dataProcessor = editor.dataProcessor;

            // Out self closing tags the HTML4 way, like <br>.
            dataProcessor.writer.selfClosingEnd = '>';

            // Make output formatting behave similar to FCKeditor.
            var dtd = CKEDITOR.dtd;
            for (var e in CKEDITOR.tools.extend(
              {},
              dtd.$nonBodyContent,
              dtd.$block,
              dtd.$listItem,
              dtd.$tableContent
            )) {
              dataProcessor.writer.setRules(e, {
                indent: true,
                breakBeforeOpen: true,
                breakAfterOpen: false,
                breakBeforeClose: !dtd[e]['#'],
                breakAfterClose: true,
              });
            }
          }
        </script>
      </p>
      <p>
        <input type="submit" value="Submit" />
      </p>
    </form>
    <div id="footer">
      <hr />
      <p>
        CKEditor - The text editor for the Internet -
        <a class="samples" href="https://ckeditor.com/">https://ckeditor.com</a>
      </p>
      <p id="copy">
        Copyright &copy; 2003-2019,
        <a class="samples" href="https://cksource.com/">CKSource</a> - Frederico
        Knabben. All rights reserved.
      </p>
    </div>
  </body>
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